The act of placing an empty corona bottle into the anus of another. The bottle should be inserted bottom first. Once the bottle is inserted the other party can look into the open bottle and take a look at the inside of the anus. It is a tasteful mix of voyeurism and sado-masochism.
Hey I'm gonna give you a tijuana spyglass I am going to take this bottle and shove it up your ass.
So I can check out that hot colon.